Eili Klein,* David L. Smith,† and Ramanan Laxminarayan* Hospital-acquired infections with Staphylococcus au- increased, fi rst to other hospitals and then into the commu- reus , especially methicillin-resistant S. aureus (MRSA) in-nity ( 5 ). By the late 1960s, >80% of community- and hos-fections, are a major cause of illness and death and impose pital-acquired S . aureus isolat